Chuq Von Rospach wrote:
>
> Well, this week my firewall admin called to ask why my server was
> beating its head against the firewall. Seems I was flooding his logs
> with attempts to connect to various sites via port 113, which the
> firewall had plugged.
>
> Port 113 is the IDENT port. It turns out that sendmail, starting about
> version 8.6, started attempting to do validations through IDENT, and
> this is turned on by default (IMHO, that's a mis-feature. It ought to
> be off by default). sendmail will send out the IDENT request and wait
> for a response.
Maybe unsuccessful attempts don't register, but I've got 8.8.8 on my
external firewall system and I get a boatload of IDENT calls logged every
day.
--
Mike Nolan
